public function get_wp_tags($post_id)
{
$tags = apply_filters($this->p->cf['lca'] . '_wp_tags_seed', array(), $post_id);
if (!empty($tags)) {
$this->p->debug->log('wp tags seed = "' . implode(',', $tags) . '"');
} else {
$post_ids = array($post_id);
// array of one
// add the parent tags if option is enabled
if ($this->p->options['og_page_parent_tags'] && is_page($post_id)) {
$post_ids = array_merge($post_ids, get_post_ancestors($post_id));
}
foreach ($post_ids as $id) {
if ($this->p->options['og_page_title_tag'] && is_page($id)) {
$tags[] = SucomUtil::sanitize_tag(get_the_title($id));
}
foreach (wp_get_post_tags($id, array('fields' => 'names')) as $tag_name) {
$tags[] = $tag_name;
}
}
}
return apply_filters($this->p->cf['lca'] . '_wp_tags', $tags, $post_id);
}
